MA_ALERT
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This tool is designed to monitor price trends on a trading chart by tracking the movement of a Moving Average (MA)—a common technical indicator used to smooth out price action and identify the general direction of the market.
Core Functionality
The script works by calculating a Moving Average based on specific parameters that you can customize, such as the length of the period, the shift, and the method of calculation. It visualizes this trend as a line on your chart, allowing you to see the current momentum at a glance.
Automated Alert Logic
Beyond simply drawing the line, the script is programmed to "watch" the direction of the Moving Average in real-time. It specifically looks for changes in the curve's direction by comparing three consecutive data points:
- Trend Reversals: The system detects when the Moving Average changes its trajectory from moving downward to moving upward (or vice versa).
- Instant Notifications: When the script identifies these specific "peaks" or "valleys" in the Moving Average's path, it triggers an automated alert notification. This is intended to inform you of a potential shift in market momentum immediately.
Smart Notification Management
To ensure that you are not overwhelmed with constant notifications, the logic includes a built-in cooling period. The script is designed to only send one alert per candle (time period). This means that even if the Moving Average continues to fluctuate rapidly within a single timeframe, you will only receive one notification until the next candle begins, providing a cleaner and more manageable flow of information.
//+------------------------------------------------------------------+
//| MA_ALERT.mq4 |
//| Kalenzo |
//| simone@konto.pl |
//+------------------------------------------------------------------+
#property copyright "Kalenzo"
#property link "simone@konto.pl"
extern bool makeItPlay = true;
extern int maMethod = 0;
extern int maPeriod = 14;
extern int maShift = 0;
extern int appiledPrice = 0;
int PrevAlertTime = 0;
#property indicator_chart_window
#property indicator_color1 Gold
#property indicator_buffers 1
double maBuffer[];
//+------------------------------------------------------------------+
//| Custom indicator initialization function |
//+------------------------------------------------------------------+
int init()
{
//---- indicators
SetIndexStyle(0,DRAW_LINE,0,1);
SetIndexBuffer(0,maBuffer);
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custor indicator deinitialization function |
//+------------------------------------------------------------------+
int deinit()
{
//----
//----
return(0);
}
//+------------------------------------------------------------------+
//| Custom indicator iteration function |
//+------------------------------------------------------------------+
int start()
{
//----
int limit;
int counted_bars=IndicatorCounted();
if(counted_bars<0) counted_bars=0;
if(counted_bars>0) counted_bars--;
limit=Bars-counted_bars;
//----
for(int i = 0 ;i < limit ;i++)
{
maBuffer[i]=iMA(Symbol(),0,maPeriod,maShift,maMethod,appiledPrice,i);
}
double ppMA = NormalizeDouble(iMA(Symbol(),0,maPeriod,maShift,maMethod,appiledPrice,3),4);
double pMA = NormalizeDouble(iMA(Symbol(),0,maPeriod,maShift,maMethod,appiledPrice,2),4);
double cMA = NormalizeDouble(iMA(Symbol(),0,maPeriod,maShift,maMethod,appiledPrice,1),4);
if (CurTime() - PrevAlertTime > Period()*60)
{
if(ppMA < pMA && pMA > cMA)
{
Alert("MA incerasing");
PrevAlertTime = CurTime();
}
else if(ppMA > pMA && pMA < cMA)
{
Alert("MA decerasing");
PrevAlertTime = CurTime();
}
}
//----
return(0);
}
//+------------------------------------------------------------------+
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